Harrow tooth mounting



June 7, 1949. F. H. ZIEGLER 2,472,242

HARROW TOOTH MOUNTING I Filed July 14, 1947 BY I I I I p ATTORNEYS.

Patented June 7, 1949 ,nazlz OFFICE HARROW TOOTH MOUNTING Fred H. Ziegler, Cullman, Ala.

Application July 14, 1947, Serial No. 760,764

1 Claim.

This invention relates to improvements in harrow construction, and more particularly, refers to an improved means of connecting the conventional spring teeth of harrows. Reference is had in this connection to Patent Number 1,781,459, dated November 11, 1930, to H. Heitmueller, in which is shown an adjustable harrow. Certain difi'iculties have been found in the connection of the spring teeth to a harrow of the type shown in the patent, it having been particularly found that the middle tooth of the harrow cannot be removed without almost complete dismantling of the harrow assembly.

The primary object of this invention, therefore, is to provide novel improvements in the harrow construction shown in the patent, whereby the middle tooth may be attached to or removed from the beam of the harrow with a minimum of effort, and without dismantling of any of the parts of the harrow. However, it is to be understood that the invention may also be applied to other types of harrows, without departure from the spirit thereof.

An important object of the invention, then, .is to permit the attachment or removal of the tooth from a harrow of the type stated, without requirement of removal of more than one bolt, and in fact, by mere loosening of said bolt.

It is a further important object of the invention to permit the removal of the tooth with unusual ease, the tooth being secured in place without the requirement of any fastening means, such as bolts or the like, whereby the tooth itself must be secured to the beam.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts, hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawings Figure 1 is a longitudinal vertical section through a harrow of the type described, showing the connection of the middle tooth thereto.

Figure 2 is a plan view of the improved connection, taken on line 2-2 of Figure 1.

Figure 3 is a view taken on line 3-3 of Figure portions of the harrow being broken away.

Referring to the drawing in detail, 5 designates the beam of the harrow, having the usual handles 6. The clevis is indicated at I, and may be integrally formed with an elongated plate 8, re-

2 ceiving bolts 9, whereby the clevis is secured to the beam. Lateral sections for the connection of the spring teeth are shown at H), I I, and I2.

The middle tooth of the harrow is designated by the reference character I3, and at its front end, this is formed with the usual opening I4, whereby in ordinary construction, the spring tooth is secured to the beam of the harrow. In the invention, however, the opening I4 is employed to receive an upwardly projecting lug I5 that projects from the upper surface of an elongated supporting plate I6.

The elongated plate I6, at its front end, is formed with an upwardly offset tongue I'I, having an opening through which may be passed the bolt I8, whereby the tongue may be tightly connected to the beam 5. The medial portion and rear end of the plate are in spaced relation to the sections II, I2 (see Fig. 1). A washer plate is positioned on top of the beam, and is indicated by the reference character I9, the bolt I8 proj ecting above the washer plate.

At its rear end, the supporting plate I6 is provided with an upwardly extended cuff 20, which is secured to plate I6 by means of countersunk bolt 2! (Figure 3). Sufiicient space is left between the upper portion of the cuff 20, and the upper surface of the supporting plate I6, for the reception of the spring tooth I3, which may be slidably passed through, and which fills, the space so defined.

To attach the spring tooth I3 to the harrow, it is necessary only to loosen bolt l8, so that the supporting plate I6 may be swung downwardly a short distance. The tooth is then passed through the cuff 2|], and positioned in engagement with the lug I5 of the supporting plate. Bolt I8 is then tightened to the beam 5, and this results in a strong connection of the spring tooth I3 to the harrow.

To remove the tooth, it is necessary only to again loosen the bolt, remove the tooth from engagement with lug I5, and withdraw it from the cuff 20.

A particular advantage is found in the construction in that it permits speedy and easy attachment or removal of the harrow tooth, to a harrow of the particular type described, without disassem-bly of the adjustable lateral sections I0, I I, or I2.

What is claimed is:

In a harrow the combination, with a beam and with lateral sections connected to the underside thereof, of a relatively elongated supporting plate extended longitudinally of and below the beam and having an upwardly offset front end, means for detachably connecting said front end to the beam, there being a space between the medial portion and rear end of the plate and said sections, a lug extended upwardly into said space from the medial portion of the plate, a spring harrow tooth having an opening at its front end for receiving the lug, said tooth adapted to fill the space between the plate and said sections, and a cuff extending upwardly into said space from the 10 Number 4 rear end of the supporting plate adapted to slidably receive the harrow tooth.

FRED H. ZIEGLER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date 964,384 Brigden July 12, 1910 

